Car-coupling.



PATENTBD MAY 21, 1907. E. O. WARNER.

GAR COUPLING.

APPLIOATION FILED NOV. 15. 1905.

UNITED sTA rns PATENT OFFICE.

EDWARD \VARNER, ()F HAVE RFOR D, PENNSYLVANIA, ASSIGN OR TO LATROBE SIEEL AND COUPLER COMPANY, OF CAMDEN, NEW JER- SEY, A CORPORA'llON OF NEW JERSEY.

CAR-COUPLING- Specification of Letters Patent.

Patented may 21, 1907.

Appiimtim file-i November 15,1905. Serial No. 287,391.

ing had to the accompanying dra\\'ings,\\'hich' form a part thereof.

My invention relates to car couplers having the general characteristics of the master car huilders type, and has for its object to provide a new and ellicient mechanism for opening the jaw of the lifting of t he locking pin.

The nature of my improvements will be best understood as described in connection with the drawings in which they are illustrated and in which Figure 1, is a plan view of a coupler pro vided with my improvements and shown on the horizontal section 1-] of Fig. 2. Fig. .2, is a vertical section on the line 22 of Fig. 1'. Fig. 3. a view similar to Fig. 2, but showing the knuckle opening device in operation. Fig. 4, is across sectional view on the line 4-4 of Fig. 2, looking toward the left. Fig. 5, is a perspective view of the knuckle, showing also the knuckle opening lover and the lug on the locking pin through which the lever is operated, and Figs. 6 and 7, are perspective views illustrating modifications of a detailed construction.

A, is the usual hollow draw bar of the coupler, A, the head in which is formed the vertical locking pin hole A the hole being somewhat contracted as it passes through the metal forming the. lower side of the head, where a shoulder A is provided, serving both as a rest for the main locking section of the pin and also as a rest for the lock set shoulder on the extension of the pin.

B, is the knuckle pivoted to the head in the usual way, and raving a tail B, lying within the head and formed with an extension B", the upper side 13, of which. forms a rest for the locking pin when the jaw is opened, while the under side B", is given an inclined or. cammed form to assist in the opening ol'the knuckle.

t", are sections of the locking pin, the part i", being the main locking portion of the the coupler by means of pin, formed with a bottom shoulder G which is adapted to rest either on the ledge A of the head or on the supporting surface B of the knuckle tail. Extending down from one side of the section C, is the pin rolongation G which s formed with a lock set lug C, adapted to rest on the ledge A", whenthe pin is li ted and also with a lug C which is preferahly given the cam or hook form best shown in Fig. 5, and which extends beneath the knuckle opening lever to be described.

D, is a ivot formed with or secured to the inside of t 1e draw-bar A, and on which is pivoted one end of the knuckle opening lever G.

the other end of which indicated at G", ex

tends beneath the cam surfaceB, of the. I

knuckle tail, and is preferably rovided with a downwardly extending lug to prevent the lug C of the locking pin from moving too far forward when engaged with the lever. E, is a cam formed on the side of the draw bar and placed, as shown; in such position as. to force the lever G, laterally when it is lifted.

lug on the locking pin. The same lat I by the ei'al movement of the lifting lever is also facilitated by the hook or cam shape of the lug C.

F, is a cam-formed on the bottom of the draw bar placed at a range to force the lifting lever laterally back to its normal position of .rest when it is disengaged by the lug on the lifting pin.

As shown in' Figs. 1, 2 and 3, the pivot D, is formed with a metal projecting lug D, at its end, and the perforation in the lifting lever G, is formed wit a corresponding lateral opening G, which pemits the lifting lever to be engaged or to bb disengaged from the pivot when it is lifted zontal position, the lug, ho weve'r, discngagenieiit of the lever from the. pin in any normal position of the assembled ooup ler. Practically e uivale-nt structures are she-:rn in Figs. 6 and 7. The guard lugs here preventing indicated at D and D in place of being formed on the end of the pivot, consist of lugs extending out from the top of thedraw bar, the lever in the construction of Fig. 6, being formed with a transverse slot G which permits it to clear the guard lug when raised to a practically horito a practically horizontal position, while in i the construction of Fig. 7 a projecting finger G serves the same purpose. The -fit betweenthe pivot D, and thedever G, pivoted upon'it is a loose one both for convenience in manufacture and assembling, and for the further reason that it is advisable to provide for alateral locking of the lever on the pin as Well as for an ordinary turning movement.

In'as sembling my improved coupler the locking pin is, first of all, inserted in its hole in the head and then the locking lever G, is connectedto the pin D, and allowed to drop to its. normal non-operative position. The knuckle B, is then inserted in the head, and secured thereto by the usual pin.

The operation of the locking pin on and in direct connection with the knuckle is of the ordinary kind and need not be described. In liftingthe pin to lock set position, that-is the osition in which the shoulder C, rests on t e flange A no part of the pin comes in lifting contact with the lifting lever G, but a further upward movement of the pin brings the lug C into contact with the lower side of the lever G, turning the lever upward on its pivot D, and bringing its end G, into contact with the cam surface B", after which the further upward movement of the lever by pressing against this surface forces the knuckle tail outward and 0 ens the knuckle, the initial effect of the li ting lever on the knuckle being aided by the construction through which a lateral movement as well asn vertical up and down movement is given to the end of the lifting lever, this lateral movement being imparted by properly placed cams such as the cam E, or the book like cam ol' the lug The function of the cam l ke-s heretofore noted, is to return the lifting lever to normal non-operative position when released by the lug on the lifting pin.

it vill readily be seen that by properly adjusting the distance between the pivot D,

sseeee and the point on the lifting lever G, which is engaged by the lug on the lifting pin, practically any desired leverage can be imparted to the lifting lever, that is to say, the effective end of the lilting end can be made to move with greater or less speed proportionate to the movement of the lifting pin. according as the pin engages the lifting lever nearer to or farther from itspoint.

Having now described my invention, what I claimas new and desire to secure b v Letters Patent is:

' 1. In a car coupler a knuckle having a cam surface formed on its tail. in combination with a lever pivoted at one end in the draw bar in the rear of thelocking pin cavity and having its other end extending below the cam on the" knuckle tail, a cam arranged to engage the lever as it presses against the cam on the knuckle tail and force it sidewise, a cam placed to engage the lever and return it to normal non-operative position when it is re leased by the lug on the locking pin. and a locking pin having a l'ug extending below the lever and in position to come in contact with said lever and press it against the cam when thepin is lil'tcd above lock set position.

2. In a car coupler having a lever adapted to contact with the knuckle tail and open the knuckle, a pivot extending from the inner side of the draw bar over which the lever can he slipped and a guard lug placed 'to-prevent the disengagement of the lever from the pivot in any normal position of the lever in an assembled coupler.

EDWARD o. WARNER. Witnesses: i ARNOLD KATZ, D. STEWART; 

